When I run my Today Extension on the simulator everything works fine and it displays the following as expected:
Since you didn't share any piece of code, I cannot help you with a specific answer. Please try to debug your widget by using following steps Debug->Attach to Process->(select your widget from the menu) and debug your viewdidload viewwillappear and - (void)widgetPerformUpdateWithCompletionHandler:(void (^)(NCUpdateResult))completionHandler methods. Hope it helps.